kimball



(No Model.)

G. A. & L. H. KIMBALL.

DEEP WELL PUMP.

Patented Jan. 23, 1883.

%//%XINVENTORE WITNESSES UNITED STATES PATENT OFFICE.

GEORGE A. KIMBALL AND LAURONJEI. KIMBALL, ()F DAVIS CITY, PA;

DEEP-WELL PUMP.

SPECIFICATION forming part of Letters Patent No. 271,082, dated January 23, 1883. Application filed May19,1882. (No model.)

To all whom it may concern:

Be it known that we, GEORGE A. KIMBALL and LAURON H. KIMBALL, of Davis City, M cKean .county, Pennsylvania, have invented new and useful Improvements in Deep-VVell Pumps; and We do hereby declare that the following is a full, clear, and exact description thereof. reference being bad to the accompanying drawing and the letters or figures of reference marked thereon.

In operating oil-wells it is necessary to explode heavycharges of nitro-glycerine or other powerful explosive inlthe oil-bearingrock to shatter and disintegrate it for the purpose of enlarging the hole and opening the crevices, thereby allowing the more rapid influx of oil. The effect of the explosion is to reduce large quantities of the rock to fine sand or powder, and this sand causes much annoyance in pumping the well. Being drawn into the pump with the fluid, it soon cuts out the packing of the valves and destroys even the metallic parts of the pump. Another difficulty arises in this wise: It being the common practice to pump the wells but a part of the time and let them stand still the remainder, the sand,which mixes with the oil or water and is carried along with it, will, when the pumpis stopped, settle down to the bottom of the eduction-pipe upon the valves. In deep wells the amountof sand thus settling is often so great as to entirely prevent the moving of the valves, and is-always destructive to thepacking, valves, and working-barrel.

The object of our invention is to provide a pump in which these difficulties areobviated, and the manner of accomplishing this end will appear from the following description, reference being bad to the accompanying drawing, which is a vertical central section in elevation of our improved pump. v

Arepresentstheworking-barrel,within which works the tight-fitting hollow plunger B, carrying the working-valve C. r

O is the stationary or standin g valve, which is raised above the bottom ofithe working,

barrel and within the hollow plunger by the pipe 0 D is a casing considerably larger in diameterthan the working-barrel, and surroundingit.

E is the eduction-pipe.

F is the anchor, reaching down below the pump.

GG are'lugs or projections at the top of the working-barrel, serving to keep it in a central position within the casing D and insuring it to occupy a position exactly below the end of the eduction-pipe.

H is a screw-threaded pin, to which rods are attached for working the piston.

I is a chamber between the outer surface of the working-barrel and the casing D. L is a bushing of peculiar construction, into which is screwed the casing D, the workingbarrel A, or a pipe supporting it, and the pipe 0 M is a chamber between the inner surface of the working-barrel and the pipe 0 r The casing D may be of anydesired length, it being only necessary to observe that the top of the working-barrelA and the standing valve 0 must occupy nearly the position shownthat is, the top of the working-barrel must be somewhat below the top of the casing D, and the standing valve 0 must be well up into the hollow plunger. These relative positions can always be maintained, whatever he the length of the casing D, by placing pipes of the proper length below the working-barrel and standing valve and screwing them all into the common bushing L. The top of the working-barrelis not connected with the casing D, the lugs G G only serving as guides, and tree communication is allowed from the space above to that below the lugs. v

The operation of this pump is as follows: When the plunger B is raised fluid is drawn through thepipe Q? and the valve 0, and upon the descent of theplunger it is forced through the working-valve O, and thus by successive strokesis raised to the surface. When the pump is stopped, as has been mentioned, the tubing or eduction pipeis full of fluid,and the sand and sediment suspended therein are deposited, falling down into the space or chamber I, between the working-barrel and the outer-casing, D, and 7 there remain until the tubing be drawn, when it may be emptied out. Without this chamber I the sand will settle upon the valve 0, with the inj urious effects before mentioned. It will be observed thata chamber is also formed at M for the reception of sand that may not rise ,above the working-valve (3. Thus both the standing-valve G and the Working valve 0 are provided with chambers below them respectively for the reception of sand.

Having described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. In a deep-well pump, the combination with the working-barrel thereof, of a standing valve located above the bottom of the workingbarrel, and of a loosely-fitting hollow plunger surrounding the standing valve, for the pur pose set forth.

2. In a deep-well pump, the combination, with the working-barrel of an inner tube attached at the bottom of the working-barrel and extending upwardly to form a chamber between it and the working-barrel, and of a standing valve attached to said inner tube,

20 substantially as described.

3. A deep-well pump consisting of the following elements-viz., a working-barrel whose upper end is disconnected from the eduotionpipe, a casing surrounding the working-barrel, ahollow plungerfitting snugly within the working-barrel and carrying a working-valve, and a standing valve mounted upon a pipe above the bottom of the working-barrel and loosely entering the hollow plunger, substantially as shown and described, and for the purposes mentioned.

In testimony that we claim the foregoing we have hereunto set our hands this 12th day of May, 1882. i

GEORGE A. KIMBALL. LAURON H. KIMB'ALL.

Witnesses:

GEo. A. STURGEON, D. L. LEWIS. 

